Epoch AI estimated Google held about one quarter of global cumulative AI compute in Q4 2025, driven primarily by roughly 3.81 million H100-equivalents of custom TPUs.

SocioLens project,

Claim LD11-HQ-C06 (v1.0)

Epoch AI estimated Google held about one quarter of global cumulative AI compute in Q4 2025, driven primarily by roughly 3.81 million H100-equivalents of custom TPUs.

Provenance and status

Claim type: Estimate
Publication status: Eligible for publication, with a qualifier
Verification state: Checked against the primary source. Who checked this claim is not recorded for it; claim checks so far were AI-led, and no person has checked claims against their sources.
Does not license: Merchant accelerator market share or reduced overall ownership concentration
Limitations: H100e approximate; some custom chips incompletely tracked
Source (as cited): Epoch AI, 7 Apr 2026
Source type: Independent research report (recorded as “Independent research dataset”)
Institutional position: Independent research nonprofit
Maturity of the evidence: Emerging evidence
Recorded date: 25 September 2026
Currentness / correction: This is the current version. No correction or concern is recorded on its sources.

Sources this version cites

Epoch AI, 7 Apr 2026 (Independent research report)
Read the original

Version

This page shows version v1.0. Its record never changes, even when newer evidence arrives; the site may add a note to the page or withhold a figure not cleared for public use.

This pinned version is also the current version.

Versions: v1.0 · current

Raw record: every recorded field, with its coded values

All 25 canonical Claim fields, verbatim, with the coded values derived from them. The plain-language labels above are read from these.

Claim type (coded): ESTIMATE (as printed: “ESTIMATE”)
Publication status (coded): ELIGIBLE (QUALIFIED) (as printed: “ELIGIBLE WITH QUALIFIER”)
Verification state (coded): CONTENT_VERIFIED_PRIMARY
Source type (coded): INDEPENDENT_RESEARCH_REPORT
Maturity (coded): EMERGING

#	Canonical field	Canonical value (verbatim)	Normalized (Claim Value Vocabulary v1.0.2)
1	CLAIM ID	LD11-HQ-C06	—
2	PUBLIC-FACING CLAIM	Epoch AI estimated Google held about one quarter of global cumulative AI compute in Q4 2025, driven primarily by roughly 3.81 million H100-equivalents of custom TPUs.	—
3	CLAIM TYPE	ESTIMATE	base_types: ESTIMATE
4	RESEARCH STRAND	A/B — Accelerators and compute	—
5	MATURITY	EMERGING	states: EMERGING
6	SOURCE	Epoch AI, 7 Apr 2026	source_ids: SRC-LD11-EPOCH-GOOGLE-COMPUTE-2026-04-07
7	SOURCE TYPE	Independent research dataset	classes: INDEPENDENT_RESEARCH_REPORT
8	INSTITUTIONAL POSITION	Independent research nonprofit	—
9	SCOPE	Google cumulative compute ownership; global; Q4 2025	—
10	DESIGN	Modelled observational dataset	—
11	SAMPLE / DATASET	Google TPU and NVIDIA ownership estimates	—
12	MODEL / TOOL / VERSION	H100e	—
13	COMPARATOR	Google TPU vs Google NVIDIA capacity	—
14	MAIN RESULT	TPU median 3,812,878 H100e; Google NVIDIA median 1,224,942 H100e	—
15	INFERENTIAL TARGET	Custom silicon as accelerator substitution inside concentrated ownership	—
16	DOES NOT LICENSE	Merchant accelerator market share or reduced overall ownership concentration	—
17	VERIFICATION STATE	CONTENT VERIFIED	state: CONTENT_VERIFIED_PRIMARY · verified_by: UNKNOWN
18	LIMITATIONS	H100e approximate; some custom chips incompletely tracked	—
19	CONTRADICTORY / SUPPORTING SOURCES	Supports substitution while C05 shows hyperscaler concentration	—
20	GEOGRAPHY / LANGUAGE	Global / English	—
21	DISTRIBUTIONAL LEDGER	Custom silicon is concentrated in very large integrated firms and partners	—
22	R01 / FIELD-MAP LINKS	D1, LD-11, R-1	—
23	WHAT WOULD CHANGE THIS CLAIM?	Material revision to Epoch estimates	—
24	PUBLICATION STATUS	ELIGIBLE WITH QUALIFIER	state: ELIGIBLE · qualifiers: QUALIFIED
25	RECORDED DATE	2026-09-25	—

Field 22 references resolved against Field Map v0.2: D1 (DOMAIN); LD-11 (LIVING_DEBATE); R-1 (LENS)

The sources as recorded, with their record IDs and coded source types:

Pinned Sources (field 6, version-specific)

“Epoch AI, 7 Apr 2026” → Epoch AI, 7 Apr 2026 (SRC-LD11-EPOCH-GOOGLE-COMPUTE-2026-04-07--v1.0) — Epoch AI, 7 Apr 2026; class INDEPENDENT_RESEARCH_REPORT (explicit public provenance pin)

Cited by Living Debate versions

Concentration, Stack & Sovereignty (v0.1) LD-11

Cite this page

SocioLens project. (2026, September 25). Epoch AI estimated Google held about one quarter of global cumulative AI compute in Q4 2025, driven primarily by roughly 3.81 million H100-equivalents of custom TPUs [Claim LD11-HQ-C06, version v1.0]. SocioLens. https://sociolens-web.pages.dev/claims/ld11-hq-c06/v1.0/

@misc{sociolens_ld11_hq_c06_v1_0,
  author = {{SocioLens project}},
  title = {Epoch AI estimated Google held about one quarter of global cumulative AI compute in Q4 2025, driven primarily by roughly 3.81 million H100-equivalents of custom TPUs.},
  year = {2026},
  date = {2026-09-25},
  howpublished = {\url{https://sociolens-web.pages.dev/claims/ld11-hq-c06/v1.0/}},
  note = {Claim LD11-HQ-C06, version v1.0}
}

The link points to this version, whose record never changes. For a finding, cite the original study as well: SocioLens summarizes research and does not replace it.

Research-of-record provenance

Materialized by sociolens-materializer 0.6.0 at 2026-09-28T20:00:00.000Z; normalization contract SocioLens — Claim Value Vocabulary v1.0.2 — Pre-Spike Materialization Contract (v1.0.2). Content seal SHA-256 a87f1756cbb6911ab43867553703bbf566b94e15722583b9830deb44b61e596c.

Frozen Drive-derived inputs

R06 — LD-11 Canonical Claim Ledger v1.0 — LOCKED (v1.0) — Drive ID 1Ff_IzUBMpax35rKovu0vxXr1WTtpfCDP; revision: NOT_EXPOSED_BY_DRIVE_TEXT_EXPORT; Drive modified ; block “ENTRY 06 — LD11-HQ-C06 ” SHA-256 123abc35d225fd294cd4dd3a9927d1305b2d26927eb614560127d2402c90881e; SocioLens — Programme Status & Authority Register v0.6 status “CURRENT.”; frozen fixture fixtures/frozen/r06-ld11-claim-ledger-v1.0.

Builder decisions (not Drive data)

VERSION = v1.0 — basis: Claim version taken from the canonical ledger artifact version (R06 — LD-11 Canonical Claim Ledger v1.0); Implementation Architecture Selection §5
CURRENT_POINTER = true — basis: SocioLens — Programme Status & Authority Register v0.6 status for "R06 — LD-11 Canonical Claim Ledger v1.0 — LOCKED": "CURRENT."
FIELD_6_SOURCE_REFERENCE = SRC-LD11-EPOCH-GOOGLE-COMPUTE-2026-04-07--v1.0 — basis: field 6 of ENTRY 06 — LD11-HQ-C06 cites "Epoch AI, 7 Apr 2026"; the frozen field-6 segment of this ClaimVersion's ledger block; Drive-derived identity authority (Issue #41 Source inventory): HQ-Q7; Batch 04 §1; ledger C06 fields 6/7/8; KEY EVIDENCE.
SOURCE_PROVENANCE_PIN = SRC-LD11-EPOCH-GOOGLE-COMPUTE-2026-04-07--v1.0 — basis: Issue #5 proof rendering (Architecture Proof Protocol v0.1 AP-08 / Amendment v1.2 §6): explicit version-pinned public provenance of this ClaimVersion — the pinned field-6 Source record "Epoch AI, 7 Apr 2026"; Drive-derived identity authority (Issue #41 Source inventory): HQ-Q7; Batch 04 §1; ledger C06 fields 6/7/8; KEY EVIDENCE.